单选题
A test of the population variance is equal to a hypothesized value requires the use of a test statistic that is:
A. t - distributed.
B. z - distributed.
C. Chi- squared distributed.
A
B
C
D
【正确答案】
C
【答案解析】
In tests of whether the variance of a population equals a particular value, the chi - squared test statistic is appropriate.
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